Opendata, web and dolomites


Charge And Spin in TopologicaL Edge States

Total Cost €


EC-Contrib. €






 CASTLES project word cloud

Explore the words cloud of the CASTLES project. It provides you a very rough idea of what is the project "CASTLES" about.

time    normal    envisioned    appearance    band    immense    promises    sort    manipulation    perfect    material    conducting    enforce    radiofrequency    coulomb    experimental    topology    realization    bulk    robustly    quantum    topological    boundary    unexplored    theoretical    explore    unknown    correlations    capture    signatures    edge    basic    solution    highlight    despite    fragility    techniques    local    manifests    regardless    dimensional    materials    efforts    objects    toolbox    insulating    boundaries    itself    global    first    tools    conductance    solid    scales    locally    observe    bits    interactions    mathematical    computers    structure    polarized    characterization    perturbations    inversion    clear    difficulties    decoherence    charge    explorations    provides    reveals    motivate    relies    regimes    polarization    insulators    spin    dynamics    predicted    encode    fact    physics    powerful    superconducting    details    computation    dynamical    hampered   

Project "CASTLES" data sheet

The following table provides information about the project.


Organization address
address: RUE MICHEL ANGE 3
city: PARIS
postcode: 75794

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country France [FR]
 Total cost 1˙499˙940 €
 EC max contribution 1˙499˙940 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2017-STG
 Funding Scheme ERC-STG
 Starting year 2018
 Duration (year-month-day) from 2018-02-01   to  2023-01-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

Topology provides mathematical tools to sort objects according to global properties regardless of local details, and manifests itself in various fields of physics. In solid-state physics, specific topological properties of the band structure, such as a band inversion, can for example robustly enforce the appearance of spin-polarized conducting states at the boundaries of the material, while its bulk remains insulating. The boundary states of these ‘topological insulators’ in fact provide a support system to encode information non-locally in ‘topological quantum bits’ robust to local perturbations. The emerging ‘topological quantum computation’ is as such an envisioned solution to decoherence problems in the realization of quantum computers. Despite immense theoretical and experimental efforts, the rise of these new materials has however been hampered by strong difficulties to observe robust and clear signatures of their predicted properties such as spin-polarization or perfect conductance.

These challenges strongly motivate my proposal to study two-dimensional topological insulators, and in particular explore the unknown dynamics of their topological edge states in normal and superconducting regimes. First it is possible to capture information both on charge and spin dynamics, and more clearly highlight the basic properties of topological edge states. Second, the dynamics reveals the effects of Coulomb interactions, an unexplored aspect that may explain the fragility of topological edge states. Finally, it enables the manipulation and characterization of quantum states on short time scales, relevant to quantum information processing. This project relies on the powerful toolbox offered by radiofrequency and current-correlations techniques and promises to open a new field of dynamical explorations of topological materials.

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The information about "CASTLES" are provided by the European Opendata Portal: CORDIS opendata.

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